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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 978 · 40 questions
TalentJR

Engineer's tip (Match the property to the job): Ask: what must it do — keep water out, bend, let light through, carry current or stay cool? Metals and graphite conduct electricity; rubber, plastic, dry wood, glass, pottery and cloth insulate. Pick the material whose main property fits the job.

NameDateTime takenScore ___ / 40
  1. 1.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  2. 2.True or false: a roof sheet needs a transparent material. (a) False (b) True
  3. 3.Which of these needs a transparent material? (a) a tea flask lining (b) a water tank (c) an umbrella cover (d) a car windscreen
  4. 4.Which of these needs a waterproof material? (a) a window pane (b) an oven glove (c) an umbrella cover (d) a hair band
  5. 5.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) graphite (d) steel
  6. 6.True or false: a skipping rope needs a flexible material. (a) False (b) True
  7. 7.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  11. 11.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  14. 14.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) a skipping rope (d) a car windscreen
  15. 15.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a cooking pot handle (d) a water tank
  16. 16.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) clay pottery (d) dry wood
  18. 18.🔍 Which is the odd one out? (a) plastic (b) steel (c) clay pottery (d) rubber
  19. 19.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) copper (d) brass
  21. 21.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) graphite (d) steel
  22. 22.🔍 Which is the odd one out? (a) copper (b) iron (c) steel (d) glass
  23. 23.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  24. 24.Which of these needs a heat insulator? (a) a tea flask lining (b) a water tank (c) a switch contact (d) a spectacle lens
  25. 25.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  26. 26.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  27. 27.True or false: a switch contact needs a transparent material. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) plastic (d) graphite
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: a window pane needs a transparent material. (a) True (b) False
  31. 31.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) iron (d) plastic
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a transparent material? (a) a roof sheet (b) the core of a wire (c) a window pane (d) a boat hull
  37. 37.🔍 Which is the odd one out? (a) aluminium (b) copper (c) cotton cloth (d) iron
  38. 38.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  39. 39.Which of these needs a flexible material? (a) a magnifier lens (b) a car windscreen (c) a roof sheet (d) a car seat belt
  40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. electrical conductor
  2. False
  3. a car windscreen
  4. an umbrella cover
  5. rubber
  6. True
  7. True
  8. a conductor
  9. an insulator
  10. waterproof
  11. plastic-coated cloth
  12. an insulator
  13. copper
  14. a raincoat
  15. the core of a wire
  16. False
  17. aluminium
  18. steel
  19. transparent
  20. dry wood
  21. plastic
  22. glass
  23. steel
  24. a tea flask lining
  25. glass
  26. electrical conductor
  27. False
  28. graphite
  29. a conductor
  30. True
  31. False
  32. iron
  33. a conductor
  34. wood or plastic
  35. an insulator
  36. a window pane
  37. cotton cloth
  38. False
  39. a car seat belt
  40. an insulator

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